Holomorphic Equivalence and Nonlinear Symmetries of Ruled Hypersurfaces in C2

被引:0
|
作者
Kolar, Martin [1 ]
Lamel, Bernhard [2 ]
机构
[1] Masaryk Univ, Dept Math & Stat, Brno, Czech Republic
[2] Univ Vienna, Fac Math, Vienna, Austria
关键词
Infinite type; Ruled hypersurfaces; Local equivalence problem; Normal forms; Nonlinear automorphisms;
D O I
10.1007/s12220-013-9465-y
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
We solve the local equivalence problem for ruled hypersurfaces in C-2 at a point of infinite type by giving a normal form. We describe all ruled hypersurfaces which admit nonlinear symmetries and give their complete characterization according to the dimension of their automorphism group. As an application, we give a bound for the dimension of the stability group for a family of nonminimal hypersurfaces.
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页码:1240 / 1281
页数:42
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